Write path to VTK.
Write the interpolated move path to a VTK file.
writeInterpolatedPathVTK(move.dat, mkde.obj, description, filename, control)
move.dat |
A move data object created with |
mkde.obj |
An MKDE object created with |
description |
A text description for the file header |
filename |
A string for the path and file name |
control |
A list for finer control |
Writes 3D lines between observed locations for move steps. Move steps
where the initial location i has a value of FALSE for
move.dat$use.obs[i] are omitted. Currently, the list argument control
only has three elements: (1) “method” with a default value of
“linear”, (2) method.par which is a list of method parameters, and (3)
z.scale used to scale the z-coordinates. Only the z.scale should be set
by the user at this time.
No value is returned
Jeff A. Tracey, PhD
USGS Western Ecological Research Center, San Diego Field Station
jatracey@usgs.gov
James Sheppard, PhD
San Diego Zoo Institute for Conservation Research
jsheppard@sandiegozoo.org
library(raster) data(condor) mv.dat <- initializeMovementData(condor$time, condor$x, condor$y, z.obs=condor$z, sig2obs=25.0, sig2obs.z=81.0, t.max=65.0) data(condordem) cell.sz <- mean(res(condordem)) ext <- extent(condordem) nx <- ncol(condordem) ny <- nrow(condordem) mkde.obj <- initializeMKDE3D(ext@xmin, cell.sz, nx, ext@ymin, cell.sz, ny, min(values(condordem), na.rm=TRUE), 30.0, 100) writeInterpolatedPathVTK(mv.dat, mkde.obj, "Example California condor move steps", "condor_path.vtk")
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